Paper prepared for the course on Sociology, Prof. Neil Smelser, Berkeley, Fall, 1967. Max Weber was well aware, at the turn of the century, that the social sciences did not have the characteristics of a mature discipline - and he seemed to like it. But forty years afterwards, this same youth did not seem to make Prof. Robert K. Merton as happy. To him, immaturity of social sciences was a good reason to keep them restricted to middle- range theorizing, and Merton indeed regretted the absence of Giants over whose mighty shoulders one could grasp the longed coming of age of the social disciplines. The embarrassing inability of the social sciences to behave properly, as other mature sciences do, is, perhaps, at the basis of all the methodological and epistemological argument in the field.